Trait Action 

pub trait Action: ActionDeriv + ActionCompute {
    // Provided methods
    fn canonical_bytes(&self) -> Vec<u8> 
       where Self: Sized { ... }
    fn from_bytes(
        version: u32,
        bytes: &[u8],
    ) -> Result<Box<Self>, DeserializeError>
       where Self: Sized { ... }
    fn approx_size(&self) -> usize
       where Self: Sized { ... }
}

Action — kernel-facing trait. Composed automatically by the blanket below: any T: ActionDeriv + ActionCompute is Action. External code never implements this directly.

Default method bodies use postcard for the canonical-bytes round trip (R3v3-Δ2). approx_size defaults to the encoded length; override only if a cheaper estimate is required.

Provided Methods

fn canonical_bytes(&self) -> Vec<u8>

where Self: Sized,

Postcard-canonical byte encoding. See Component::canonical_bytes for the contract; identical shape applies here.

fn from_bytes(version: u32, bytes: &[u8]) -> Result<Box<Self>, DeserializeError>

where Self: Sized,

Inverse of canonical_bytes. SchemaVersionMismatch on unequal version.

fn approx_size(&self) -> usize

where Self: Sized,

Approximate byte size — defaults to encoded length.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T: ActionDeriv + ActionCompute> Action for T